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2025-04-06 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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This article mainly explains the "mysql add columns, modify column names, column attributes and delete column statements", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in-depth, together to study and learn "mysql add columns, modify column names, column attributes and delete column statements" it!
Add columns, modify column names, column properties, and delete column statements
Mysql modifies table name, column type, adds table column, deletes table column
Alter table test rename test1;-- modify the table name
Alter table test add column name varchar (10);-- add table columns
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Alter table test drop column name;-Delete table columns
Alter table test modify address char (10)-- modify the table column type
| | alter table test change address address char (40) |
Alter table test change column address address1 varchar (30)-- modify the table column name
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